Side by side pricing and context for Gemini 1.5 Pro and Gemini 2.5 Pro. Rates are curated catalog values with last verified dates on each model page.
Gemini 1.5 Pro
Prior Gemini Pro generation for migration comparisons against 2.5/3.x Pro. Useful when auditing older apps still pinned to 1.5 endpoints.
Input $1.25 / Output $5.00 per 1M
Context 2M · Approx (Gemini family)
Gemini 2.5 Pro
Google Pro model for long-context analysis with published long-context price tiers after 200K input. Always estimate with your real prompt length in TokenCALC.
Input $1.25 / Output $10.00 per 1M
Context 1M · Approx (Gemini family)
Quick take
- Input rates match on this snapshot.
- Gemini 1.5 Pro is cheaper on output in this catalog snapshot.
- Both last verified on their model pages (2026-08-02 / 2026-08-02).
Rate table
| Metric | Gemini 1.5 Pro | Gemini 2.5 Pro |
|---|---|---|
| Input / 1M | $1.25 | $1.25 |
| Output / 1M | $5.00 | $10.00 |
| Cached input / 1M | $0.313 | $0.125 |
| Context | 2M | 1M |
| Tokenizer | Approx (Gemini family) | Approx (Gemini family) |